FI: FIRST RESULTS FROM THE XENON1T DARK MATTER EXPERIMENT AT LNGS 
 ELENCO COMPLETO 

DATA: 29-06-2017

SEZIONE DI FIRENZE
Seminario dr. Marco Selvi We report the first dark matter search results from XENON1T, a~2000 kg dual-phase xenon time projection chamber in operation at the Laboratori Nazionali del Gran Sasso in Italy, the first ton-scale detector of this kind. The blinded search used 34.2 live days of data acquired between November 2016 and January 2017. Inside the (1042±12) kg fiducial mass and in the [5, 40] keVnr energy range of interest for WIMP dark matter searches, the electronic recoil background was (1.93±0.25)x10−4events/(kg x day x keVee), the lowest ever achieved in a dark matter detector. A profile likelihood analysis shows that the data is consistent with the background-only hypothesis. We derive the most stringent exclusion limits on the spin-independent WIMP- nucleon interaction cross section for WIMP masses above 10 GeV/c2, with a minimum of 7.7 x10−47cm2for 35-GeV/c2WIMPs at 90% confidence level. In the full nominal 2 t y exposure, we expect to reach with XENON1T a sensitivity of 1.6 x10−47cm2. We will also present the future upgrade of the detector, XENONnT, with increased active mass and lower background, to foresee another order of magnitude improveme nt in sensitivity by 2024.


 SITO COLLEGATO 

 EVENTI RECENTI 
11-12-2019: Multiplicity and energy dependence of light charged particle production in ALICE at the LHC
11-12-2019: Double-Logarithmic contribution to Pomeron and application to the photon-photon scattering - Boris Ermolaev
10-12-2019: Dai spazio al tempo
10-12-2019: Machine Learning in High Energy Physics - Tommaso Boccali
09-12-2019: Visita ai laboratori della Sezione INFN di Trieste da parte di studenti del Liceo Scientifico dell' IIS Cattaneo-Dall'Aglio di Castelnovo ne' Monti (RE)
09-12-2019: Properties of nuclei in the N=Z=50 region investigated via multi-nucleon transfer reactions and lifetime measurements - Marco Siciliano
06-12-2019: From kaonic atoms to strangeness in neutron stars
05-12-2019: M. Gromov - Updated results of the geo-neutrino observation with the Borexino detector
05-12-2019: A scuola di radioattivita'
04-12-2019: La fisica incontra la cittą - L'arte ed i suoi segreti: la fisica per svelarli

[Back]

 

 

 

Istituto Nazionale di Fisica Nucleare - Piazza dei Caprettari, 70 - 00186 Roma
tel. +39 066840031 - fax +39 0668307924 - email: presidenza@presid.infn.it

F.M. F.E.